Home / 83,601.32-115,280.34-63,229.64

Finding the Fourth Proportional to 83,601.32, 115,280.34 and 63,229.64

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Solution

The fourth proportional to 83,601.32, 115,280.34 and 63,229.64 is: 87,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,601.32 : 115,280.34 = 63,229.64 : x
  2. Step 2: Convert to fraction form
    83,601.32/115,280.34 = 63,229.64/x
  3. Step 3: Cross multiply
    83,601.32x = 115,280.34 × 63,229.64
  4. Step 4: Simplify right side
    83,601.32x = 7,289,134,397.28
  5. Step 5: Solve for x
    x = 7,289,134,397.28/83,601.32
  6. Step 6: Final answer
    x = 87,189.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.